routes

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

models.my-model.js

import Ember from 'ember';

export default Ember.Object.extend();

routes.application.js

import Ember from 'ember';
import MyModel from '../models/my-model';

const {RSVP} = Ember;

export default Ember.Route.extend({
  model() {
    return MyModel.create({
      login: 'asdasdasd',
      password: 'asdasdasdasd',
      nested: {
        a: 1
      }
    });
  },
  
  actions: {
    error(data) {
      return this._super(data);
    },
    
    print() {
      let m = this.controller.model;
      var propertyNames = m.get('propertyNames') || [];
      console.log(propertyNames)
    
      return new RSVP.Promise((resolve, reject) => {
        reject(1);
      }).catch((data) => {
        this.send('error', data)
      });
    }
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}

<button {{action "print"}}>log</button>
<br>
<br>

templates.error.hbs

Error Occured

twiddle.json

{
  "version": "0.7.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.4.3/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.4.3/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.4.3/ember-template-compiler.js"
  }
}